Inherited an old greenhouse on a property we purchased in 2013 - never used the greenhouse until now. Had the same model thermostat but, given years of neglect/nonuse, decided to replace it with an identical model. Installation was done by our electrician but I can say it's been up and running, with excellent thermostatic control.

I have purchased this thermostat to replace one that no longer would work. The piece came to my house quickly and was exactly what I needed to replace the thermostat that did not work. The instructions were accurate and easily understood and the repair was made in less than a half hour.

Had your heat thermostat for over 50 years in my home 10x17 foot greenhouse. I just had to replace it with the same product model. That should speak for itself!

Great design. Simple weather proof mechanical thermostat that does not require power for it to operate. Can be used with line voltage or low voltage. Three screw type with a common and one normally closed and one normally open contact so it can be used for heating or cooling. Has a good seal on the plastic hinged door to keep moisture out. Door is clear plastic so temperature setting can be viewed with door closed.

I wanted to like this control, but I never could get it to come on at the right temperature. I had to set it about 8 degrees higher than what I wanted which was OK with me as long as it was consistent. The other problem I had was the cover for the dial would not stay closed. Water ended up collecting inside of the box. At that point I had enough. I called ACF, and they recommended the surestat ts110 model instead which was completely waterproof. I got that and a refund for the price difference. Got to hand it to them. This one works perfect and saved me some $$$!